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Engine-Codes – GMC – P1701 GMC

P1701 GMC Code - Transmission MIL Request Circuit

Quick Answer

The P1701 GMC code indicates a problem with the Transmission MIL (Malfunction Indicator Lamp) Request Circuit. Common causes include Faulty transmission control module, Wiring issues in the transmission MIL request circuit, Malfunctioning transmission range sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1701 GMC indicates Transmission MIL Request Circuit.
Common causes
Common causes include Faulty transmission control module, Wiring issues in the transmission MIL request circuit, Malfunctioning transmission range sensor.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 25, 2024
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Code P1701 GMC Description

The P1701 GMC code indicates a problem with the Transmission MIL (Malfunction Indicator Lamp) Request Circuit. This circuit is responsible for sending a signal to the vehicle's onboard computer to illuminate the transmission warning light on the dashboard when an issue is detected. If this circuit malfunctions, it can lead to incorrect or no warning signals being displayed, potentially resulting in the driver not being aware of transmission issues.

OBDII Code P1701 GMC - Transmission MIL Request Circuit
P1701 GMC Code - Transmission MIL Request Circuit

Common Causes of P1701 GMC

  1. Faulty transmission control module
  2. Wiring issues in the transmission MIL request circuit
  3. Malfunctioning transmission range sensor
  4. Corrosion or damage to electrical connections
  5. Software issues in the vehicle's onboard computer

Symptoms of P1701 GMC

  1. Transmission warning light illuminated on the dashboard
  2. Erratic shifting behavior
  3. Transmission slipping
  4. Harsh gear changes
  5. Transmission stuck in one gear

How to Fix P1701 GMC

  1. Diagnose the specific cause of the P1701 GMC code using a scan tool.
  2. Inspect the wiring and electrical connections in the transmission MIL request circuit for any damage or corrosion.
  3. Test the transmission control module and transmission range sensor for proper operation.
  4. Replace any faulty components identified during the diagnostic process.
  5. Clear the code from the vehicle's computer and test drive to ensure the issue is resolved.

Cost to Fix P1701 GMC

The typical repair costs for addressing a P1701 GMC code can range from $150 to $500, depending on the specific cause of the issue and the cost of replacement parts. It's important to note that labor rates at auto repair shops can vary, so it's advisable to get a quote from a local shop for a more accurate estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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